aperture efficiency 中文意思是什麼

aperture efficiency 解釋
開口比
  • aperture : n. 1. 孔，隙縫。2. （照相機的）光圈；孔徑，口徑。
  • efficiency : n. 1. 功效。2. 效率；效能；實力，能力。3. 【物理學】性能。
  1. Based on the theory analysis and experiment work, the paper studies the humidifying property of the centrifugal nozzle with firing pin type, high pressure and little aperture. compared with the traditional air washer, the high efficiency and energy saving character of this kind of nozzle is stood out

    課題從理論和試驗兩方面分析研究了撞針型高壓小孔徑離心式噴嘴的霧化加濕性能，並將其與傳統噴水室加濕系統進行能耗比較，突出了撞針型高壓小孔徑離心式噴嘴高效節能的特點。
  2. Later, the paper ascertains how the prominent factors influence the humidifying effect by single factor experiment and got such solutions : when other situations do n ' t change, the nozzle flux will enhance with the increase of the nozzle aperture and spraying pressure. air ' s changing quantity of enthalpy and absolute humid, valid humidified quantity, humidifying efficiency and saturation efficiency will enhance with the increase of the initial water temperature. with the enhance of the praying pressure, the valid humidified quantity and air ' s changing quantity of enthalpy will increase first and decrease later, while the humidifying efficiency will drop

    然後通過單因素試驗確定影響顯著的因素如何作用加濕效果，得到：在其他條件不變的情況下，噴嘴流量隨噴嘴孔徑和噴水壓力的升高而增大，空氣焓變量、絕對濕度差、有效加濕量、加濕效率及飽和效率隨噴水初溫的升高而提高，有效加濕量和空氣焓變量隨噴水壓力的升高先增加然後有所下降，而加濕效率隨噴水壓力的升高而下降，焓變量和絕對濕度差隨水氣比的增加而增大。
  3. Figure 5. transfer efficiency of a solder paste related to aperture area ratio and its effect on reflowed bump co - planarity

    圖5 ，錫高轉移的效率與孔面積比率及它對迴流峰共面度的影響。
  4. The outline of fiber ' s tip has very great influence on the coupling efficiency. it is reported, using the way of grinding and melting to form a microlens on the fiber ' s tip, can increase fiber ' s numerical aperture, reduce the ellipticity of laser, and improve coupling efficiency

    光纖端面的形狀對耦合效率有很大的影響，有文獻報道，採用拋磨燒熔等加工方法，可在光纖端面形成一個微透鏡，增大光纖的數值孔徑，對入射激光進行橢圓度校正，從而提高耦合效率。
  5. The use of aperture coupled feeding widens the working band and increases the isolation. simultaneously, the application of round patch can upgrade the gain and radiation efficiency of the antenna

    採用口徑耦合饋電能夠展寬帶寬，提高隔離度，而採用圓形作為貼片形狀可以提高天線的增益和輻射效率。
  6. As the most widely used type of slot antennas, waveguide slots arrays have the advantage of tight structure, easily controlled aperture distribution, and wide band for the nonresonant waveguide slots antennas, which make it be one of the preferred form in antenna domain of high efficiency and low side - lobe

    縫隙天線在現代天線設計中有著重要的地位，而波導縫隙天線又是縫隙天線中應用最為廣泛的天線形式。波導縫隙天線有結構緊湊、口徑幅度相位分佈容易控制和頻帶較寬（行波式縫隙天線）的特點，成為了高效率、低副瓣天線的優選方案之一。
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